Finding the Third Proportional to 623,086 and 891,025

Step by Step Solution

1. Step 1: Write the proportion equation
   623,086 : 891,025 = 891,025 : x
2. Step 2: Convert to fraction form
   623,086/891,025 = 891,025/x
3. Step 3: Cross multiply
   623,086x = 891,025 × 891,025
4. Step 4: Simplify right side
   623,086x = 793,925,550,625
5. Step 5: Solve for x
   x = 793,925,550,625/623,086
6. Step 6: Final answer
   x = 1,274,182.94